20039032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4481}}^1$

素因数の和:4543

約数の個数: 32

約数和(自身を含む): 41413680

約数和(自身を除く): 21374648

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4481, 8962, 17924, 35848, 58253, 116506, 192683, 233012, 385366, 466024, 770732, 1541464, 2504879, 5009758, 10019516, 20039032]

約数ペア:

[(1, 20039032), (2, 10019516), (4, 5009758), (8, 2504879), (13, 1541464), (26, 770732), (43, 466024), (52, 385366), (86, 233012), (104, 192683), (172, 116506), (344, 58253), (559, 35848), (1118, 17924), (2236, 8962), (4472, 4481)]